Pith Number

pith:UVPYJCBA

pith:2026:UVPYJCBAC3QRJEA7UV5MC2Z357

not attested not anchored not stored refs pending

A Restricted Chen-Nagano Variational Principle for the Einstein-Hilbert Functional

Irina Tsyganok, Sergey Stepanov

arxiv:2606.10704 v1 · 2026-06-09 · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UVPYJCBAC3QRJEA7UV5MC2Z357}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-10T01:10:35.361602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a55f84882016e114901fa57ac16b3beff8fb8cc90248847301e9abf14204f75b

Aliases

arxiv: 2606.10704 · arxiv_version: 2606.10704v1 · doi: 10.48550/arxiv.2606.10704 · pith_short_12: UVPYJCBAC3QR · pith_short_16: UVPYJCBAC3QRJEA7 · pith_short_8: UVPYJCBA

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UVPYJCBAC3QRJEA7UV5MC2Z357 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a55f84882016e114901fa57ac16b3beff8fb8cc90248847301e9abf14204f75b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe87e92a0db4861c2c59d71d79df2a36e9f3e3f0143713ab2837fa8458e3603f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2026-06-09T11:05:06Z",
    "title_canon_sha256": "7f2524f00abaa03eea485d2805f9f56f3b725ca557b091cf4610a250895ab54c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.10704",
    "kind": "arxiv",
    "version": 1
  }
}